3.3.1 The human perceptual system In order to survive, all living things have evolved some sort of ability to sense or perceive the world around them. Even the humble amoeba is sensitive to light. Complex animals have intricate perceptual systems that respond to many different features of their environment – insects, despite their impressive eyes, are most sensitive to trails of chemicals; bats are blind to light but responsive to sonar pulses; dogs and pigs depend more on smell than vision for sensing the world. We w
18.1 Introduction Most supermarkets now have an online ICT system which allows customers to select and purchase goods from the supermarket's website. Goods are then delivered to the customer's home. Buying and selling things using the internet is known as 'electronic commerce', often shortened to e-commerce. 2.3 Models of an ICT system To help me to introduce you to important ideas about ICT systems, I'm going to take a three-stage approach. ICTs involve conveying, manipulating and storing data. This is going to be the basis of my approach. Firstly, in the next few sections, we'll look at ICT systems where the primary function is to convey data. We can think of these systems as communication systems and I'll use a mobile phone system as an example. In sections 8–14, I'll focus on ICT systems wher References 1.3.5 Using colour to represent information All UIs need to communicate information. Colour can be particularly effective for this. Table 4 summarises some of the techniques that are available. 4.7 Soundex You will have seen that most genealogical websites and software can match names despite differences in spelling. For example, FamilySearch provides a check box to choose matches using exact spelling; if this box is not checked, results include many variant spellings. How is this done? Most genealogy software uses the soundex method; this has been used to index the US census back to 1900. Soundex converts names that sound similar into the same code and the search is then performed on the 4.5 What's going on when searching for your ancestors You have seen how general purpose search engines work. In this section we consider some of the additional techniques that are important to genealogical searches. 4.4 Quality, not quantity It is common for a web search to return hundreds, or even millions, of hits; certainly too many to check. But uncannily, the first few hits often contain just what you were looking for. How do search engines manage this seemingly miraculous feat? The answer lies in techniques used to rank pages so that the 'best' are first. Each search engine uses different tec 3.1 Searching for your ancestors In this section we consider searching for information about your ancestors. We cannot hope to cover all the techniques and information required to research genealogy, family history and local history; there is only time in this course to scratch the surface. Some of the activities here are open-ended; please do not spend too long on them. If the subject interests you, you can revisit it after the course finishes, making use of the genealogical resources in the Appendix. 1 The incredible shrinking chip Two Scottish computer engineers with little or no physics knowledge set out to make a semiconductor transistor. This was 50 years ago, and their efforts gained them the Nobel Prize. The versatility of that transistor is now at the heart of the electronics industry. Millions of transistor switches are shrunk down into the microprocessors that are found in computers, mobile phones and almost everything else electrical. The first transistor took years to plan and make; today more are made 2.4 Computer systems (contd) As I have already mentioned, the functional blocks shown in Figure 3 relate very closely to, even though they are not necessarily identical with, the computer's physical components. The computer's physical components are normally known collectively as the hardware. Software is a term often used to refer to a 4.2.2 Multicast bus architectures This form of technology, like the hub and spoke approach, allows the broadcasting of messages to a number of receivers. Some of the implementations of bus architectures are rooted in multicasting, a technique which allows data to be broadcast to a number of clients. However, some, like the industrial example iBus detailed later in this course, are a sort of software implementation of an Ethernet, where objects are sent down a bus and only processed by any receiver that requires the obj 6.2.12 B2B exchanges A B2B exchange is a website or collection of websites which make the process of carrying out business to business transactions much easier. Under this banner comes sites which enable multiple companies to procure services and products from each other; help businesses form temporary alliances to carry out activities such as joint marketing or project bidding, and enable a marketplace in raw materials to function. Supporting children’s learning in the early years Collaboration in the classroom Learning to change Learning to teach: becoming a reflective practitioner (Chinese) Key skills - making a difference Learning to learn: Planning for personal change Introduction There are many approaches to using film music in the classroom, including: a focus on pupil experience; a focus on the structure of composition; a focus on the relationship between music and image; This course will explore some of these approaches through various activities. Find out more about studying with The Open University by Author(s):
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How do young children learn, and how can adults help them? This album looks at how nursery teachers support children in their development. We follow a practitioner’s day, looking at how she works with children, observes and plans for further activities while she also records her thoughts and ideas using a video camera. Further video tracks reveal how creativity is nurtured in young children to develop their abilities, how an artist in residence works with nursery children, as well as how the
What teaching methods can be used to improve a school’s performance? What are the benefits of collaborating within an educational institution?
Victoria school for the arts in Canada is ranked amongst the best performing in the country. Maths is now one of the school’s most successful subjects; however three years ago the department was underachieving. The appointment of Kevin Bissoon to the position of head of maths is credited with helping to turn around the school’s fortunes in that subj
This free course, Learning to change, is for people who are thinking about making changes in their lives, such as returning to study or taking a different direction at work. It will help you build on what you already know; consider the choices open to you; use your skills and qualities to achieve change; and make plans for the future.
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本免费课程是“学会教学：成为反思型教学实践者”课程的中文翻译版本，英文原版也在本网站中提供。 This free course is the Chinese version of Learning to teach: becoming a reflective practitioner, which is also available in English.
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This free course, Key skills - making a difference, focuses on higher level skills. Skills development is complementary to other learning it cannot be done in isolation. The higher level skills in this material aim to raise your awareness of the processes of learning and development other subject-based material must supply the context and motivation for this. Key skills underpin the ability to carry out successfully, and improve on, a wide range of tasks in higher education, employment and w
This free course, Learning to learn: Planning for personal change, explores academic theories and acts as a guide to help you establish where you want to go and what you want to achieve. You are encouraged to develop a personal Action Plan. The focus returns to your own viewpoint and you are encouraged to change or modify how you think about using Learning to learn. The course also looks at how online learning communities can be used as part of the process of learning and personal change. PLEAS
